From 77a43da60b70bd14ad40412882b00b54cad806e8 Mon Sep 17 00:00:00 2001
From: midichef <67946319+midichef@users.noreply.github.com>
Date: Sat, 26 Oct 2024 01:32:08 -0700
Subject: [PATCH] [input-] preserve None cells on external editor quit

---
 visidata/_input.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/visidata/_input.py b/visidata/_input.py
index 7c56ff060..0bef336e5 100644
--- a/visidata/_input.py
+++ b/visidata/_input.py
@@ -249,7 +249,14 @@ def handle_key(self, ch:str, scr) -> bool:
             c = vd.prettykeys(c)
             i += len(c)
             v += c
-        elif ch == '^O':                           self.value = vd.launchExternalEditor(v); return True  # auto-accept after $EDITOR
+        elif ch == '^O':
+            edit_v = vd.launchExternalEditor(v)
+            if self.value == '' and edit_v == '':
+                # if a cell has a value of None, keep it when the editor exits with no change
+                raise EscapeException(ch)
+            else:
+                self.value = edit_v
+                return True
         elif ch == '^R':                           v = self.orig_value  # ^Reload initial value
         elif ch == '^T':                           v = delchar(splice(v, i-2, v[i-1:i]), i)  # swap chars
         elif ch == '^U':                           v = v[i:]; i = 0  # clear to beginning